Earlier quoted context omitted.
I repaired a new-ish TV - cost me £30. https://shkspr.mobi/blog/2020/10/replacing-the-motionengine-... If you can find me a new TV at that price, please let me know! Yes, getting in a professional at £X per hour means it is probably not economical to repair a cheap washing machine. But if the parts and manuals are easily available, it suddenly becomes a lot quicker and easier to repair it yourself rather than replace…
The problem is you need to be highly skilled to do that repair. So many times I have ordered replacement parts and then either broken something like a plastic ribbon cable connector, or I have installed the new part and it still doesn't work.
You also need to be highly skilled to do a lot of automotive repairs, which is why there is a thriving market of third-party mechanics who will perform those repairs for a fraction of the cost of buying a new vehicle. The same can (and should, IMO) be true for electronics.